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glsl: Implement parser support for atomic counters.

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v2: Mark atomic counters as read-only variables.  Move offset overlap
    code to the linker.  Use the contains_atomic() convenience method.
v3: Use pointer to integer instead of non-const reference.  Add
    comment so we remember to add a spec quotation from the next GLSL
    release once the issue of atomic counter aggregation within
    structures is clarified.
v4 (idr): Don't use std::map because it's overkill.  Add an assertion
    that ctx->Const.MaxAtomicBufferBindings <= MAX_COMBINED_ATOMIC_BUFFERS.

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Francisco Jerez
2013-10-20 12:38:07 -07:00
committed by Ian Romanick
parent 30f61c471d
commit e63bb29853
6 changed files with 103 additions and 6 deletions
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2
src/glsl/glsl_lexer.ll
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@@ -337,6 +337,7 @@ samplerExternalOES {
return IDENTIFIER;
}
atomic_uint KEYWORD_WITH_ALT(420, 300, 420, 0, yyextra->ARB_shader_atomic_counters_enable, ATOMIC_UINT);
struct return STRUCT;
void return VOID_TOK;
@@ -518,7 +519,6 @@ restrict KEYWORD(0, 300, 0, 0, RESTRICT);
readonly KEYWORD(0, 300, 0, 0, READONLY);
writeonly KEYWORD(0, 300, 0, 0, WRITEONLY);
resource KEYWORD(0, 300, 0, 0, RESOURCE);
atomic_uint KEYWORD(0, 300, 0, 0, ATOMIC_UINT);
patch KEYWORD(0, 300, 0, 0, PATCH);
sample KEYWORD(0, 300, 0, 0, SAMPLE);
subroutine KEYWORD(0, 300, 0, 0, SUBROUTINE);